FreeOrion and GiGi are a nightmare. I have them as live ebuilds in my overlay (layman -a seden) and if you want to emerge gigi, make sure to set MAKEOPTS to "-j1". However, they both emerged well on my laptop using gcc-4.7.1._________________elogind(elogind) - [TRACKER] sys-auth/elogind - Integration into Gentoo
"A conservative is a man who is too cowardly to fight and too fat to run."
-- Elbert Hubbard

it seems you need to eselect python-2.7 (and maybe have to run python-updater again, you might want to check https://dev.gentoo.org/~quantumsummers/use_python_guide.xml so you don't have to run python-updater every time you switch python versions) , because the includedir points to python-3.2 which is not compatible

I will see if I can fix that behavior, but I have a feeling it might be a bit more complicated and will not be today.